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Asparagus vs. Sweet onion — In-Depth Nutrition Comparison

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A recap on differences between Asparagus and Sweet onion

  • Sweet onion has less Vitamin K, Iron, Copper, Vitamin B2, Vitamin B1, Vitamin E, Folate, and Vitamin B3.
  • Asparagus covers your daily Vitamin K needs 34% more than Sweet onion.
  • Sweet onion contains 57 times less Vitamin E than Asparagus. Asparagus contains 1.13mg of Vitamin E, while Sweet onion contains 0.02mg.

Food varieties used in this article are Asparagus, raw and Onions, sweet, raw.

Infographic

Asparagus vs Sweet onion infographic
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Mineral Comparison

Mineral comparison score is based on the number of minerals by which one or the other food is richer. The "coverage" charts below show how much of the daily needs can be covered by 300 grams of the food.
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 10% 7.2% 18% 80% 63% 15% 22% 0.26% 21% 13%
Magnesium Magnesium Calcium Calcium Potassium Potassium Iron Iron Copper Copper Zinc Zinc Phosphorus Phosphorus Sodium Sodium Manganese Manganese Selenium Selenium 6.4% 6% 11% 9.8% 19% 3.5% 12% 1% 9.9% 2.7%
Contains more MagnesiumMagnesium +55.6%
Contains more CalciumCalcium +20%
Contains more PotassiumPotassium +69.7%
Contains more IronIron +723.1%
Contains more CopperCopper +237.5%
Contains more ZincZinc +315.4%
Contains more PhosphorusPhosphorus +92.6%
Contains less SodiumSodium -75%
Contains more ManganeseManganese +107.9%
Contains more SeleniumSelenium +360%

Vitamin Comparison

Vitamin comparison score is based on the number of vitamins by which one or the other food is richer. The "coverage" charts below show how much of the daily needs can be covered by 300 grams of the food.
Vitamin C Vit. C Vitamin A Vit. A Vitamin E Vit. E Vitamin D Vit. D Vitamin B1 Vit. B1 Vitamin B2 Vit. B2 Vitamin B3 Vit. B3 Vitamin B5 Vit. B5 Vitamin B6 Vit. B6 Vitamin B12 Vit. B12 Vitamin K Vit. K Folate Folate Choline Choline 19% 45% 23% 0% 36% 33% 18% 16% 21% 0% 104% 39% 8.7%
Vitamin C Vit. C Vitamin A Vit. A Vitamin E Vit. E Vitamin D Vit. D Vitamin B1 Vit. B1 Vitamin B2 Vit. B2 Vitamin B3 Vit. B3 Vitamin B5 Vit. B5 Vitamin B6 Vit. B6 Vitamin B12 Vit. B12 Vitamin K Vit. K Folate Folate Choline Choline 16% 0.06% 0.4% 0% 10% 4.6% 2.5% 5.9% 30% 0% 0.75% 17% 3%
Contains more Vitamin CVitamin C +16.7%
Contains more Vitamin AVitamin A +75500%
Contains more Vitamin EVitamin E +5550%
Contains more Vitamin B1Vitamin B1 +248.8%
Contains more Vitamin B2Vitamin B2 +605%
Contains more Vitamin B3Vitamin B3 +635.3%
Contains more Vitamin B5Vitamin B5 +179.6%
Contains more Vitamin KVitamin K +13766.7%
Contains more FolateFolate +126.1%
Contains more CholineCholine +190.9%
Contains more Vitamin B6Vitamin B6 +42.9%
~equal in Vitamin D ~0µg
~equal in Vitamin B12 ~µg

Macronutrient Comparison

Macronutrient breakdown side-by-side comparison
2% 4% 93%
Protein: 2.2 g
Fats: 0.12 g
Carbs: 3.88 g
Water: 93.22 g
Other: 0.58 g
8% 91%
Protein: 0.8 g
Fats: 0.08 g
Carbs: 7.55 g
Water: 91.24 g
Other: 0.33 g
Contains more ProteinProtein +175%
Contains more FatsFats +50%
Contains more OtherOther +75.8%
Contains more CarbsCarbs +94.6%
~equal in Water ~91.24g

Carbohydrate type comparison

Carbohydrate type breakdown side-by-side comparison
12% 35% 53%
Starch: 0 g
Sucrose: 0.23 g
Glucose: 0.65 g
Fructose: 1 g
Lactose: 0 g
Maltose: 0 g
Galactose: 0 g
14% 45% 40%
Starch: 0 g
Sucrose: 0.72 g
Glucose: 2.26 g
Fructose: 2.02 g
Lactose: 0.02 g
Maltose: 0 g
Galactose: 0 g
Contains more SucroseSucrose +213%
Contains more GlucoseGlucose +247.7%
Contains more FructoseFructose +102%
Contains more LactoseLactose +∞%
~equal in Starch ~0g
~equal in Maltose ~0g
~equal in Galactose ~0g

Comparison summary table

Pay attention to the rightmost column. It displays the amounts side by side, giving a clearer understanding of the difference.
Asparagus Sweet onion
Lower in Saturated Fat ok
Lower in Glycemic Index ok
Lower in price ok
Lower in Sugar ok
Lower in Sodium ok
Rich in minerals ok
Rich in vitamins ok
Lower in Cholesterol Equal

All nutrients comparison - raw data values

Nutrient Asparagus Sweet onion Opinion
Calories 20kcal 32kcal Sweet onion
Protein 2.2g 0.8g Asparagus
Fats 0.12g 0.08g Asparagus
Vitamin C 5.6mg 4.8mg Asparagus
Net carbs 1.78g 6.65g Sweet onion
Carbs 3.88g 7.55g Sweet onion
Magnesium 14mg 9mg Asparagus
Calcium 24mg 20mg Asparagus
Potassium 202mg 119mg Asparagus
Iron 2.14mg 0.26mg Asparagus
Sugar 1.88g 5.02g Asparagus
Fiber 2.1g 0.9g Asparagus
Copper 0.189mg 0.056mg Asparagus
Zinc 0.54mg 0.13mg Asparagus
Phosphorus 52mg 27mg Asparagus
Sodium 2mg 8mg Asparagus
Vitamin A 756IU 1IU Asparagus
Vitamin A 38µg 0µg Asparagus
Vitamin E 1.13mg 0.02mg Asparagus
Manganese 0.158mg 0.076mg Asparagus
Selenium 2.3µg 0.5µg Asparagus
Vitamin B1 0.143mg 0.041mg Asparagus
Vitamin B2 0.141mg 0.02mg Asparagus
Vitamin B3 0.978mg 0.133mg Asparagus
Vitamin B5 0.274mg 0.098mg Asparagus
Vitamin B6 0.091mg 0.13mg Sweet onion
Vitamin K 41.6µg 0.3µg Asparagus
Folate 52µg 23µg Asparagus
Choline 16mg 5.5mg Asparagus
Saturated Fat 0.04g Sweet onion
Polyunsaturated fat 0.05g Asparagus
Tryptophan 0.027mg 0.009mg Asparagus
Threonine 0.084mg 0.018mg Asparagus
Isoleucine 0.075mg 0.014mg Asparagus
Leucine 0.128mg 0.025mg Asparagus
Lysine 0.104mg 0.033mg Asparagus
Methionine 0.031mg 0.009mg Asparagus
Phenylalanine 0.075mg 0.024mg Asparagus
Valine 0.115mg 0.02mg Asparagus
Histidine 0.049mg 0.011mg Asparagus
Fructose 1g 2.02g Sweet onion

Which food is preferable for your diet?

ok
ok
is better in case of low diet
Asparagus Sweet onion
Low Calories diet ok
Low Fats diet ok
Low Carbs diet ok
Low Glycemic Index diet ok

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Vitamins & Minerals Daily Need Coverage Score

The summary scores indicate the extent to which this food can fulfill your daily vitamin and mineral requirements if you consume 3 servings, consisting of 100 grams of each (an approximation of 3 serving sizes).
Vitamins Daily Need Coverage Score
28%
Asparagus
7%
Sweet onion
Minerals Daily Need Coverage Score
25%
Asparagus
8%
Sweet onion

Comparison summary

Which food is lower in Saturated Fat?
Sweet onion
Sweet onion is lower in Saturated Fat (difference - 0.04g)
Which food is lower in glycemic index?
Sweet onion
Sweet onion is lower in glycemic index (difference - 32)
Which food is cheaper?
Sweet onion
Sweet onion is cheaper (difference - $4)
Which food is lower in Sugar?
Asparagus
Asparagus is lower in Sugar (difference - 3.14g)
Which food contains less Sodium?
Asparagus
Asparagus contains less Sodium (difference - 6mg)
Which food is richer in minerals?
Asparagus
Asparagus is relatively richer in minerals
Which food is richer in vitamins?
Asparagus
Asparagus is relatively richer in vitamins
Which food contains less Cholesterol?
?
The foods are relatively equal in Cholesterol (0 mg)

References

All the values for which the sources are not specified explicitly are taken from FDA’s Food Central. The exact link to the food presented on this page can be found below.

  1. Asparagus - https://fdc.nal.usda.gov/fdc-app.html#/food-details/168389/nutrients
  2. Sweet onion - https://fdc.nal.usda.gov/fdc-app.html#/food-details/170008/nutrients

All the Daily Values are presented for males aged 31-50, for 2000-calorie diets.

Data provided by FoodStruct.com should be considered and used as information only. Please consult your physician before beginning any diet.